The garbage disposal in my kitchen was here when I bought the house
several years ago. I have no idea how old it is. I have no problem
with its operation -- stuff gets chopped up and disappears down the
drain -- but when I turn it off and it spins down it makes a horrible
noise. It sounds to me kind of like dry bearings. (It is a little
loud during operation but I'm not surprised about that.) I've
searched the web and this group for advise on lubricating a disposal
but found nothing. Any thoughts?
When the unit is worn out, there is nothing to fiddle with.
Our ISE unit lasted almost 15 years which was replaced with new SS unit.
Called ISE customer service, right away warm body answered, when I gave
old model no. They gave direct replacement unit nomenclature. Just drop
old one off, mount the new one. 30mins. job.
Likely at the end of service. Our lightly used 10 year old disposal
started making a similar noise and last week it became noticeably
quieter but no longer processed waste. I fished out one blade and the
pin. I think the pin was peened and that broke off releasing the blade.
It is an insinkerator which is the brand every store seems to sell. If
you search you will see they get poor ratings and the usual failure is
the blade attach failing or the bottom seal leaking.
I was just looking for a replacement. I am not buying another
insinkerator. Waste King seems to make a good product.
Insinkerator has a line of units, some better than others.
My contractor installed model was never quiet and rusted out
I bought a higher end Insinkerator that's lasted twice as long
so far and is whisper quiet.
Mine seized up last night. I sprayed WD-40 down inside, but could not get i
t to turn. The motor was humming like it wanted to work. I went to bed with
the WD-40 seeping into all the moving parts, and this morning it started u
p fine. I then squirted some marina axle grease down in there and let it ru
n w/o water but with the grease, and the unit is now running like new. Prob
ably don't want to overdo the grease as that could lead to clogs but once a
year or two is probably okay.
And there is little hex key to turn it manually. Jamming is common thing
from now and them. Watch what you feed into it. No grease, it is
not grease disposer, LOL! No hot water either when running specially
when you pour down greasy left over garbage. Again no hot water.
As far as I am concerned WD-40 is solvent not a lubricant. Axle grease
down the sewer? That is polluting, bad! Are you the one who pour down
the drained car oil into man hole too?
Mine seized up last night. I sprayed WD-40 down inside, but could not get it
to turn. The motor was humming like it wanted to work. I went to bed with
the WD-40 seeping into all the moving parts, and this morning it started up
fine. I then squirted some marina axle grease down in there and let it run
w/o water but with the grease, and the unit is now running like new.
Probably don't want to overdo the grease as that could lead to clogs but
once a year or two is probably okay.
I've had problems twice that went beyond mere jamming. There was something
stuck in there! First it was dirt from a potted plant. Then it was a
little piece of plastic from a nail brush. I blame a cat both times for
these things happening.
I was unable to clear the problems myself and had to call a plumber.
But it does excel in certain situations. I was about to toss my cross-cut
shredder because it continually jammed but WD-40 totally revived it although
it took two good and thorough soakings. Fortunately the new WD-40 cans come
with a built-in dual-nozzle for broad and pin-point applications.
Now I make sure I run some sheets of scrap paper with motor oil drizzled on
it every month or so. The problem comes from adhesives in the incoming mail
that build up on the cutting blades. Probably a similar situation occurs
with sticky stuff building up on garbage disposal cutter blades.
Disagree about sticky stuff on the cutter blades.
Take a look in yours. I don't think you're going to see anything
in there but shiny stainless steel.
In my case the dishwasher output goes through the disposal.
Of course that cleans it in the process.
Then those blades move pretty fast and chop up anything you put in
there. A little glue on those blades would be knocked right off
as they encounter whatever you put in there.
Don't own a GD in this house but have owned/repaired a few. It all depends
what you macerate in the unit. IOW, YMMV. Any time you have moving parts
in a "slop stream" eventually trouble will happen. Some people are very
careful about what they run through a GD and others, not so much.
That certainly would delay the formation of RPM reducing gunk buildups.
I'm not conceding that point, just based on some of the extraordinarily
gunked up units I've seen. More importantly I'd never underestimate the
power of gunk. It gets pretty grotty inside some GD's and even some kitchen
drains that I've seen. Gunk accretes. If it's allowed to dry out in layers,
over long periods of time, I am confident it could eventually cause
I personally can't see adding more solid matter to the sewage treatment
plants so I just use a strainer, and either compost or trash the celery and
onion scraps, etc.
WD-40 sure saved my shredder. With all those cutters you'd think it would
be self-cleaning and resistant to gunk - but it's not.
Yes, I thought that was clear when I described how I fed oil-soaked sheets
of paper through the shredder *after* I sprayed them with WD-40 to loosen
all the adhesive gunk. I suspect that without that subsequent step, the
blades would gum up again in very short order.
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